= 3.03 X lo",(Ans):= 7.34/8 =hown that thissnt. The cross-ind pipe(A=eter = ttD 3"ficient shapes.nin pipes andrious practicalrather simplei idea involved/ system, withients. We willlength may belarallel, series,y on which ofthe dependenthown in Tableed in terms ofves needed toType IIIGivenDetermine"•TO"*.Example8.8(TYPE I,DETERMINEPRESSUREDROP)£fUdrf*^^*'***^"8.5 Pipe Flow Examples509convey the fluid between the desired locations. In all instances we assume the fluid propertiesare given.Ina Type I problem we specify the desired flowrate oraverage velocity and determinethe necessary pressure differenceorhead loss. For example, if a flowrate of2.0 gal/min isrequired fora dishwasher that isconnected to the water heater by a given pipe system, whatpressure is neededin the water heater?InaType IIproblem we specify the applied driving pressure (or, alternatively, the headloss) and determine the flowrate. For example, how many gal/min ofhot water are suppliedto the dishwasher if the pressure within the water heater is60psiand the pipe system details(length, diameter, roughness of the pipe; number of elbows; etc.) are specified?Ina Type III problem we specify the pressure drop and the flowrate and determine thediameter ofthe pipe needed. For example, what diameter ofpipe is needed between the waterheater and dishwasher if the pressure in the water heater is 60 psi (determined by the citywater system) and the flowrate is to be not less than 2.0 gal/min (determined by the manufacturer)?Several examples of these types of problems follow.Water at 60 °F flows from the basement to the second floor through the 0.75-in. (0.0625-ft-)-diameter copper pipe (a drawn tubing) ata rate ofQ= 12.0 gal/min = 0.0267 ft3/s andexits through a faucet of diameter 0.50 in. as shown in Fig. E8.8a. Determine the pressure at

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